Jeweling of watches



(Model.) 1

0. H. BAGLEY.

JEWELING 0F WATCHES. N0.244,356. Patented July 12, 1881.

UNITED STATES PATENT OFFICE.

QHARLES H. BAGLEY, OF ELGIN, ILLINOIS.

JEWELINGI OF WATCHES.

SPECIFICATION forming part of Letters Patent No. 244,356, dated July 12, 1881.

Application filed April 18, 1881. (Model) To all whom "it may concern:

Be it known that I, OHAR-LEs H. BAGLEY, of Elgin, in the county of Kane, and in the State of Illinois, have invented certain new and useful Improvements in the Jeweling of Watches, Clocks, 8w. and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a perspective view of the friction-ring, jewel-setting, and reversible end stone, and Fig. 2 is a transverse central section of the same in position with a watchplate.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to simplify and lessen the costof jeweling the pivotal bearings of watches, clocks, and other like machinery; and to this end it consists, principally, in an end jewel having double parallel bearing-faces, whereby it may be reversed, and either of such faces caused to receive the end wear of a pivot, substantially as and for the-purpose hereinafter specified.

It consists, further, in the combination of the reversible end jewel, jewel-setting, and friction-ring with the watch-plate, substantially as and for the purpose hereinafter set forth.

In the annexed drawings, A represents one of the plates of a watch provided with a pivotopening, a, and within its lower side having an enlargement or recess, a, for the reception of the setting. 4

Fitted loosely within the bottom of the recess a is an end or cap jewel, B, which has the form of a disk with plain parallel sides and straight or slightly-rounded edges.

Above the end jewel, B, is placed a holejewel, G, which is secured within a metal setting, D, in the usual manner, the lower half of said setting having a cylindrical form and being fitted closely within the recess a, while its upper half is reduced in diameter, so as to form an annular right-angled rabbet, d. The reduced upper portion of said setting is principally or entirely above the upper face of the hole-jewel C, and has a flaring central opening, d, in the usual manner.

Fitted within the upper end of the recess a is a ring, E, which is slightly larger in diameter than said recess, and is cut open radially at one side, so as to enable it to be compressed sufficiently to enter the same, and when in place the outward spring of said ring will cause it to maintain its position, and will prevent all liability of accidental displacement. To facilitate the insertion of the ring E within the recess to its lower outer corner is beveled, as shown. The ring E nearly fills the rabbet d, and, resting upon the bottom of the same, holds the settingD and end jewel, B, firmly in place within the recess a.

In consequence of the construction described the end jewel and hole-jewel are firmly secured within the plate A without the use of screws or other usual'means, and may be placed in. or removed from position in a fraction of the time heretofore required for such operation.

The desired amount of end shake may be secured, and the longitudinal position of the staff of a balance, or of other like part of a watch or clock, with relation to other connecting parts, may be varied at will by the use of end jewels of different thickness, the hole-jewel and friction-ring being capable of considerable vertical movement within the recessed plate, so as to admit of the use of thick or thin end jewels.

hen an end jewel becomes worn it may be reversed, and the new face, presented as a hearing for the end of the pivot, will possess as much durability as did that before used, so that one of such end stones is capable of at least twice the amount of use that could be obtained from those of ordinary construction.

Having thus fully set forth the nature and merits of my invention, what I claim as new 1s 1. An end jewel having double parallel bean ing-faces, whereby it may be reversed, and either of such faces caused to receive the end wear of a pivot, substantially as and for the purpose specified.

2. In combination with the plate A, having the recess a, the reversible end jewel, B, the hole-jewel setting D, having the rabbet (I, and the ring E, divided at one point and adapted to be sprung into said recess, substantially as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 2d day of 105 April, 1881. I

CHARLES H. BAGLEY. YVitnesses:

W. H. GLOUDMAN, CARLOS H. SMITH. 

